Albion l



(No Model.)

A. L. F. MITCHELL.

Y JACK l'OR, BOOTS OR SHOES. No. 310,532. Patented Jan. 6, 1885.

umpl mi r wi lsv 125mm WP (V A im" 'Unrrnn drains ALBION L. F.

1afrnnr trice@ MITCHELL HEEL AND EDG-E BURNISHING- COMPANY, OF KITIERY, ME.

JACK FOR BOOTS'OR SHOES.

SPECIFICATION forming pari. of Letters Patent Iil'o. 310,532, dated January 6, 1885.

Application filed October 23, 18S-l.

To @ZZ whom, it may concern.-

Be it known that I, ALBION L. F. MITCHELL, of Lynn, in the county of Essex and State of Massachusetts, have invented certain Inlprovenients in Jacks, of which the following is a specification.

This invention has i'or its object to provide a jack adapted to rotate a boot or shoe held by it while the heel of said boot or shoe is pre- Io sented to a burnishing-tool, the boot or shoe being rotated first in one direction and then in the other, so that the surface of the heel may be repeatedly presented to the tool.

The invention consists in the several iin- 1 5 provern ents hereinafter described andclaiined.

Oi' the accompanying drawings, forming a part of this specification, Figure l represents a front elevation of a jack embodying my invention applied to a burnishing machine.

2o Fig. 2 represents an end elevation of the saine. Fig. 3 represents a section on line x, Fig. l. Fig. et represents a section of a portion ofthe jack.

The saine letters of reference indicate the saine parts in all the figures.

In the drawings, a represents the standard which supports the arbor of a rotary burnishing-wheel, b, formed to burnish aboot or shoe heel.

To the standard a is rigidly attached a stout arin, c, and to the other end of this arm is connected, by a pivotbolt, cZ, a yoke or bearing, e, adapted to oseillate freely on the pivot cZ. An arbor, f, is journaled in the yoke or bearing c, and on said arbor is mounted the supporting-frame g of the jack, said frame having bearings 71, Zi, through which the arbor passes. The frame can therefore oscillate in two directions-viz., with the yoke c and arbor j' on the pivot CZ, and independently of said yoke on the arbor j" at right angles to the direction in which it is capable of oscillating on said point.

The parts of the jack that hold the boot or shoe are, first, an arbor, i, journaled in a bear-A .5o secondly, a rod, Z, mounted in a sleeve, n, af-

fixed to a yoke or oflsetbar, o, which is se (No model.)

cured to the arbor by a set-screw, s?, said set-screw also securing to the arbor t asleeve,

j, having pinion, 71/, whereby an oscillating or rocking motion is communicated to the arbor fi, arm 0, and rod Z, as hereinafter described. rlhe rod Z has a plate, p, at its inner end, which bears against the top lift ot the heel, and is pressedagainst the heel by a spring, q, (see Fig. 4,) the heel being thus 6o clamped between the plates 7c p. A lever, r, pivoted at s to the oifsetbar o, enters a notch in the rod Z, so that when the lever is turned in the direction indicated by the arrowin Eig.

l it will force the rod Z back and release the heel. rlhe lever r is provided with a spring dog or catch, which engages with a notched segment, t, afiixed to the bar o, and holds the lever at any point to which it may be inoved along said segment.

The parts described are so located with reference to the burnishing-wheel b that the heel held between the plates may bear against said wheel. The oscillations of the frame g on the arbor f enable the heel to inove toward and from the burnishing-wheel, and enable the frame g to move as required when the heel is rotating and is in contact with the wheel. The oscillations of the frame g and yoke or bearing c on the pivot cZ enable the heel to be 8o inoved across the perimeter of the Wheel, so that all portions of the heel-edge may be presented to the burnishing portion of the wheel.

a represents a curved guide-rod supported by lugs c c, attached to the standard a, said 8 5 rod being curved, so that it is in the arc of a circle having its center in the center of the arbor j'. A socket, w, Vis iitted to slide on the guide-rod a, said socket receiving a curved rod, a, which is secured adjustably by a set- 9o screw, Zi, to a socketed boss, c', on the frame g. The rod a and socket w are curved, the rod being the are cfa circle having its center in the pivot d. A spring, c', interposed be tween the boss c and socket w, serves as a buffer to prevent the boss from striking the socket when the frame g swings toward the standard a.

lt will be seen that the socket w and curved rod a constitute a telescopic connection beroo tween the frame g and standard c, said connection sliding on the curved guide-rod u.

A spring, ff, secured at one end to the sliding socket w and at the other end to the standard a, pulls the frame normally in the direction indicated by the arrow in Fig. 2, and thus presses the heel against the burnishing-wheel. The arbor t is secured by a set-screw, s2, to a sleeve, jl, as above described. Said sleeve is provided with a pinion, h', with which meshes a rack-segment, t, on the upper end of the lever j. Said lever is pivoted at k to the frame g, and is provided at its lower end with a slot, Z, which receives a wrist-pin, m', set eecentrically in a disk, fn', on the arbor f. The arbor is rotated by a belt, 0', running from the driving-shaft p, and its rotation causes the eccentric wrist-pin m" to oscillate the lever f, and thus rotate or rock the arbor with the boot or shoe, iirst in one direction and then in the opposite direction. The heel is thus repeatedly presented to the burnish- V'ing-wheel, the rotations or oscillations of the arbor being sufficient to present all parts of the heel-edge to the wheel. The lever is allowed to remain nearly at rest at the end of each moveinent,while the wrist-pin is moving nearly in line with the slot Z', the heel then remaining at rest, so that the sides of the heel, or the portions adjacent to the breast thereof, which are then in cont-act with the wheel, re-

' ceive a longer continuous burnishing action than the other parts of the hecl-edge. Better results are thus produced than would be the case if all parts of the heel received the saine amount of burnishing.

It will be observed that the jack is capable ot' being easily controlled by the operator, who is enabled to present any desired part of the heel-edge to the burnishing-wheel, and secure the required burnishin g action without hard or fatiguingtexertion.

I claiml. In a heel-burnishing machine, the coinbination of a supporting-standard, a burnishing-tool mounted thereon, a frame pivoted to said standard to swing universally, as described, an arbor, i, and co-operating heelclamping devices7 substantially as described, mounted on the swinging end of said. frame, and mechanism, substantially as described, whereby said arbor and cooperating devices are oscillated, as set forth.

2. The jack composed of the yoke or bearing e, pivoted to a fixed support to swing in a given plane, the frame g, pivoted to the yoke to swing in a plane at right angles to that in which the yoke swings, an arbor, t', and cooperating heel-clamping devices, substantially as described, mounted on the swinging end of said frame, and mechanism, substantially as described, whereby said arbor and co-oper` ating devices are oscillated, as set forth.

3. The combination of the yoke or bearing pivoted to a fixed support, the arbor journaled in said bearing and provided with the eccentric wrist-pin, the frame mounted on said arbor, the arbor' i, journaled in the upper end of said frame,and provided with a pinion and devices, substantially as described, co-operating with said arbor to hold a heel, and the lever pivoted to the frameand provided at.

one end with a rack-segment engaged with the pinion, and at the other end with a slot receiving the eccentric wristpin, as set forth.

4.-. The combination of the standard, having Y the curved guide-rod, and the jack'pivoted to swing in two directions, as described, and provided With the telescopic connection mounted on said curved guide-rod, as set forth.

5. The combination of the jack pivoted to swing in two directions, as described, the standard having the curved guide-rod, the socket w, mounted to slide on said rod, the curved rod a', attached to the'jack,.and the s )ring c inter nosed between the 'ack and the l s l J sliding socket, as set forth.

G. rlhe combination of'thestandard having the burnishing-tool and the curved guide-rod, the jack pivoted to swing in two directions, as described, the telescopic connection mounted to slide on the guide-rod, and the springf, whereby the jack is pulled toward the burnishing-tool, as set forth.

7. In a jack, the combination ofthe arbor i,

having a clamping-plate, the offset-bar o, se-

IOO 

